<template>
  <view>
    <view class="search-box">
      <uni-search-bar @input="input" :radius="100" cancelButton="none"></uni-search-bar>
    </view>
    <!-- 搜索建议列表 -->
    <view class="sugg-list" v-if="searchList.length !== 0">
      <view class="sugg-item" v-for="(item,index) in searchList" :key="index" @click="gotoGoodsDetail(item.goods_id)">
        <view class="goods_name">{{item.goods_name}}</view>
        <uni-icons type="arrowright" size="16"></uni-icons>
      </view>
    </view>
    <!-- 搜索历史 -->
    <view class="history-box" v-else>
      <view class="history-title">
        <text>搜索历史</text>
        <uni-icons type="trash" @click="clean"></uni-icons>
      </view>
      <view class="history-list">
        <uni-tag :text="item" v-for="(item,index) in historyList" :key="index" @click="gotoGoodsList(item)"></uni-tag>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        timer:null,
        kw:'',
        searchList:[],
        historyList:[]
      };
    },
    onLoad() {
      this.historyList = JSON.parse(uni.getStorageSync('kw') || '[]')
    },
    methods:{
      input(e){
        clearTimeout(this.timer)
        this.timer = setTimeout(()=>{
          this.kw = e
          this.getSearchList()
          
        },500)
      },
      async getSearchList(){
        if(this.kw === ''){
          this.searchList = []
          return
        }
        const {data:res} = await uni.$http.get('/api/public/v1/goods/qsearch',{query:this.kw})
        if(res.meta.status !== 200) return uni.$showMsg()
        this.searchList = res.message
        this.saveHistory(this.kw)
      },
      gotoGoodsDetail(goods_id){
        uni.navigateTo({
          url:'/subpkg/goods_detail/goods_detail?goods_id='+goods_id        })
      },
      saveHistory(e){
        if(this.historyList.indexOf(e) !== -1){
          this.historyList.splice(this.historyList.indexOf(e),1)
        }
        this.historyList.unshift(e)
        uni.setStorageSync('kw',JSON.stringify(this.historyList))
      },
      clean(){
        this.historyList = []
        uni.setStorageSync('kw','[]')
      },
      gotoGoodsList(kw){
        uni.navigateTo({
          url:'/subpkg/goods_list/goods_list?query=' + kw
        })
      }
    }
  }
</script>

<style lang="scss">
.search-box{
  position: sticky;
  top:0;
  z-index: 999;
}
.sugg-list{
  padding: 0 5px;
  .sugg-item{
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    padding: 13px 0;
    border-bottom: 1px solid #efefef;
    .goods_name{
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      margin-right: 3px;
    }
  }
}
.history-box{
  padding: 0 5px;
  .history-title{
    display: flex;
    justify-content: space-between;
    height: 40px;
    align-items: center;
    font-size: 13px;
    border-bottom: 1px solid #efefef;
  }
  .history-list{
    display: flex;
    flex-wrap: wrap;
    .uni-tag{
      display: block;
      margin-top: 5px;
      margin-right: 5px;
      background-color: #efefef;
      color: black;
    }
  }
}
</style>
